radio altimeter

Six seconds before impact, the radio altimeter warning was activated.

The system monitors an aircraft's height above ground as determined by a radio altimeter.

However a radio altimeter (displaying the height above the ground if lower than around 2000-2500 feet) has been standard for decades.

This delay was derived from a simple radio altimeter.

The radio altimeter is the only instrument that's essential."

Should the radio altimeter fail, a backup barometric detonator was used.

Tom switched on his high orbital radio altimeter.

Height over the water had to be judged without the benefit of a radio altimeter and misjudgement was easy, especially in calm conditions.

A radio altimeter measures altitude above the terrain presently beneath an aircraft or spacecraft.

The failures were caused by problems with cables that caused the radio altimeter to provide incorrect information.

The missile is guided by a gyro-stabilized autopilot in conjunction with a radio altimeter.

A 1 meter diameter parabolic dish antenna for the radio altimeter was also located at this end.

The moving of the radio altimeter indicators to within the pilot's field of head-up vision should be examined.

The high precision radio altimeter allows the missile to have minimum-altitude flight above the sea, which is normally 20 30 m.

Included in the $3 million of aircraft parts the undercover agents bought were a radio altimeter and a flight instrument amplifier, both valued at $40,000.

The radio altimeter became vocal, threatening.

A spurious input, such as a radio height greater than the radio altimeter's maximum, results in a warning.

In 1924, American engineer Lloyd Espenschied invented the radio altimeter.

The radio altimeter warning sounded.

FM-CW radars are very widely used as radio altimeters in aircraft.

This was similarly done by a radio altimeter signal which simply drove the autothrottle servos to a flight idle setting.

During this manoeuvre, a fluctuation in the radio altimeter height corresponds to the aircraft passing over a patch of trees.

The electrical axis of the radio altimeter antenna was lined up with the axis of the cylinder.

The plane has a radio altimeter that would still function, she said, and if there were moonlight, a pilot could probably get a rough gauge of speed.

It will carry a ring laser gyroscope for high-accuracy navigation and a radio altimeter for the height determination.